Styles for MS Bookings

[StenTon155]

When I insert frame MS Bookings on my site, I encounter a problem that the container is limited to a width of 1024

.mainContent {
max-width: 1024px;
min-width: 320px;
margin: 0 auto;
text-align: center;
}

and therefore large margins along the edges (with my mount 1900).
How can I fix this style and make max-width: auto;?

[#2]

@StenTon155 did you get any solution? am also having same problem. "maincontent" div limited to 420px.